KN-164 -- Usually around $11. Been using them & the 163 on other bikes for years. After reading of some problems with the nut twisting off I give it a little stress test prior to install. No failures...

The Metzler guy at MOA rally told me to use 42/42 loaded or unloaded and if that felt too harsh to reduce the front to no less than 38. He describes himself as an aggressive sport-tour ex-racer type...